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>>>>> "Marc" == Marc Feeley <feeley@xxxxxxxxxxxxxxxx> writes: >> I think I'm missing a crucial bit here: Where do >> NONNULL_UCS2STAR_FROM_SCHEME, NONNULL_UCS2STAR_TO_SCHEME and >> associates come from? What's "a way to define type aliases on the C >> side of the FFI"? Marc> These are conversion functions (in C) defined by the FFI (they take a Marc> bunch of parameters that are irrelevant to this discussion). The C Marc> code generated by the Gambit compiler contains calls to these Marc> conversion functions at the appropriate places. So what do you do when there isn't a predefined conversion function between Scheme type and C type? -- Cheers =8-} Mike Friede, Völkerverständigung und überhaupt blabla